Cylindrical roller bearing and cage thereof
A technology of cylindrical roller bearings and cages, applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve problems such as short life, and achieve the effects of improving life, reducing wear, and curbing the tendency of slipping
Active Publication Date: 2018-08-28
HENAN UNIV OF SCI & TECH
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- Abstract
- Description
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Problems solved by technology
[0004] The object of the present invention is to provide a cylindrical roller bearing whose rollers are not easy to slip, so as to solve the problem of short service life of the existing cylindrical roller bearing; meanwhile, the present invention also provides the cage of the above-mentioned cylindrical roller bearing
Method used
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Embodiment Construction
[0027] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0028] A specific embodiment of the cylindrical roller bearing of the present invention, such as Figure 1 to Figure 7 As shown, for the convenience of introduction, the rotation direction of the cage in this embodiment is forward, the side wall of the pocket hole on the front side in the rotation direction of the cage is the front side wall, and the side wall on the rear side is the rear side wall . The cylindrical roller bearing includes an inner ring 3, an outer ring 1 and a cage 2. The cage includes an annular body extending axially left and right and a pocket 21 arranged on the annular body. The pocket 21 is provided with a roller 4. Roller 4 is a cylindrical roller.
[0029] Such as image 3 As shown, the rotation direction of the cage is indicated by the arrow in the figure, the shape of the pocket hole 21 is adapted to the shape of the roller ...
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The invention relates to a cylindrical roller bearing and a cage thereof. The cage of the cylindrical roller bearing of the invention comprises an annular body with an axis extending leftward and rightward and a pocket arranged in the annular body. In the process of rotation, a roller drives the cage to rotate via the pocket; and since the rear sidewall of the is inclined, the direction of a resultant force of positive pressure exerted on the roller by the rear sidewall and frictional force is rotated toward the inner side of the bearing by a certain angle, so the resultant force of the positive pressure and the frictional force has decreased radial outward component force, the roller receives decreased radial outward force accordingly and thus receives increased radial inward force, and finally, the contact force between the roller and an inner ring is increased, which is favorable for suppressing the slipping tendency of the roller, reducing wear caused by the slipping of the rollerand improving the service life of the cylindrical roller bearing.
Description
technical field [0001] The invention relates to a cylindrical roller bearing and its cage. Background technique [0002] Most of the bearings of aviation turbojet engines use cylindrical roller bearings, and these bearings usually work at high speeds (the current DN value has reached 3×10 6 mm.r / min or more), high temperature and light load environment. [0003] The Chinese patent with the announcement number CN 101910660 B and the announcement date of 2013.03.13 discloses a cylindrical roller bearing. The annular body of the cage of the bearing is evenly distributed in the circumferential direction with a plurality of pockets for installing cylindrical rollers. The rollers are installed in the pockets and are in contact with the inner and outer rings of the bearing. The front and rear side walls of the pockets limit the cylindrical rollers in the circumferential direction. During the rotation process, the cylindrical rollers rotate between the inner and outer rings of the...
Claims
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IPC IPC(8): F16C33/38
Inventor 刘延斌韩秀英庞翔元王亚威韩建海张彦斌
Owner HENAN UNIV OF SCI & TECH